cd  C:\Program Files\PostgreSQL\8.4\bin

set dataAtual=%DATE:~0,2%-%DATE:~3,2%-%DATE:~6,4%.sql
SET PGPASSWORD=gmcsistemas
pg_dump -h  127.0.0.1 -U  postgres -p 5432 -v -b ProjetoRecibo > C:\Sistema_recibo\backup\bkpRecibo%dataAtual%